According to AbsaOSS/spline-ui#179 the filter `append` on a data-source resource should accept any combination of values: - `true` (append) - `false` (overwrite) - `null` (no writes / read-only)
According to AbsaOSS/spline-ui#179 the filter
appendon a data-source resource should accept any combination of values:true(append)false(overwrite)null(no writes / read-only)